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Comparison Kingston A2000 M.2 SA2000M8/250G 250 GB vs Kingston KC2000 M.2 SKC2000M8/250G 250 GB

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Kingston A2000 M.2 SA2000M8/250G 250 GB
Kingston KC2000 M.2 SKC2000M8/250G 250 GB
Kingston A2000 M.2 SA2000M8/250G 250 GBKingston KC2000 M.2 SKC2000M8/250G 250 GB
from $25.97 
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Placementinternalinternal
Size250 GB250 GB
Form factorM.2M.2
M.2 interfacePCI-E 3.0 4xPCI-E 3.0 4x
Technical specs
ControllerSilicon Motion SM2263ENGSilicon Motion 2262EN
Memory type3D TLC NAND
3D TLC NAND /96 ply/
NVMe
Write speed1100 MB/s1100 MB/s
Read speed2000 MB/s3000 MB/s
Shockproof1500 G
MTBF2 m h2 m h
Write IOPS180 K200 K
Read IOPS150 K350 K
TBW150 TB150 TB
DWPD0.3 times/day0.3 times/day
Manufacturer's warranty5 years5 years
General
Data encryption
Size22x80 mm80x22x3.5 mm
Weight6 g8 g
Added to E-Catalogaugust 2019may 2019

Controller

Model of the controller installed in the SSD.

The controller is a control circuit, which, in fact, ensures the exchange of information between the memory cells and the computer to which the drive is connected. The capabilities of a particular SSD module (in particular, read and write speed) largely depend on this particular scheme. Knowing the controller model, you can find detailed data on it and evaluate the capabilities of the drive. For simple everyday use, this information is usually not needed, but for professionals and enthusiasts (modders, overclockers) it can come in handy.

Nowadays, high-end controllers are produced mainly under such brands: InnoGrit, Maxio, Phison, Realtek, Silicon Motion, Samsung.

Read speed

The highest data exchange rate with a computer (or other external device) that the drive can provide in read mode; in other words — the highest speed of information output from the drive to an external device. This speed is limited both by the connection interface (see "Connector"), and by the characteristics of the device of the SSD itself. Its values can vary from 100 – 500 MB / s in the slowest models to 3 Gb / s and higher in the most advanced ones.

Shockproof

A parameter that determines the resistance of the drive to drops and shocks during operation. Measured in G — units of overload, 1 G corresponds to the usual force of gravity. The higher the G number, the more resistant the device is to various kinds of shocks and the less likely it is to damage the data in it, say, in the event of a fall. This parameter is especially important for external drives (see Type).

Write IOPS

The IOPS provided by the drive in write mode.

The term IOPS refers to the highest number of I / O operations that an SSD module can perform per second, in this case, when writing data. By this indicator, the speed of the drive is often evaluated; however, this is not always true. Firstly, the IOPS values of different manufacturers can be measured in different ways — by the maximum value, by average, by random write, by sequential write, etc. Secondly, the benefits of high IOPS become noticeable only with some specific operations — in in particular, the simultaneous copying of numerous files. In addition, in fact, the speed of the drive may be limited by the system to which it is connected. In light of all this, it is generally acceptable to compare different SSD modules by IOPS, but the real difference in performance is likely not to be as noticeable as the difference in numbers.

As for specific values, for the write mode with IOPS up to 50K is considered relatively modest, 50 – 100K — medium, more than 100K — high.

Read IOPS

The IOPS provided by the drive in read mode.

The term IOPS refers to the maximum number of I / O operations that an SSD module can perform per second, in this case, when reading data from it. By this indicator, the speed of the drive is often evaluated; however, this is not always true. Firstly, the IOPS values of different manufacturers can be measured in different ways — by the maximum value, by the average, etc. Secondly, the advantages of high IOPS become noticeable only with some specific operations — in particular, when copying numerous files at the same time. In addition, in fact, the speed of the drive may be limited by the system to which it is connected. In light of all this, it is generally acceptable to compare different SSD modules by IOPS, but the real difference in performance is likely not to be as noticeable as the difference in numbers.

For modern SSDs in read mode, an IOPS value of less than 50K is considered a very limited indicator, in most models this parameter lies in the range of 50 – 100K, but there are also higher numbers.

Data encryption

Data encryption ensures the protection of storing information on a disk: only someone who knows the password can access encrypted information. The encryption module is an integral part of the drive and does not depend on the computer to which it is connected. The ability to encrypt data is critical if you plan to write confidential information to discs; this feature is especially useful for portable drives and laptop drives, which are more at risk of theft than fixed systems and their components.
Kingston A2000 M.2 often compared
Kingston KC2000 M.2 often compared